Provide refactoring engine for ClangCodeModel and
implement missing methods.
Change-Id: If5c913e0c5a7941cd2ced54d0fcfa4d625eadc93
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
Now it's in accordance with clangrefactoringbackend/source and
clangpchmanagerbackend/source.
Change-Id: I939cfc72cffb8fcde0649f125e6efb6670d1cbc3
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>